Steam, air, and water trap valve.



F. W. LBUTHESSER.

STEAM, AIR, AND WATER TRAP VALVE.

APPLICATION FILED PEB.24, 1910.

1,031,653. Patented July 2,1912.

56 m j 29 B /j /0 7 lb Wgznesses: fnreni'or;

{ elk-,6 Bed h/Leuf/Lesselr TD. STATES FRED W. LEUTHESSE'R,

OF CHICAGO, ILLINOIS.

STEAM, AIR, Ai\TD WATER TRAP VALVE.

Specification of Letters Patent.

Patented July 2, 1912.

Application filed February 24, 1910. Serial No. 545,565.

To all whom it may concern Be it known that I, FRED WV. Lnu'rnnssnn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Steam, Air, and Water Trap Valves, of which the following is a specification.

The valve of the present invention is used in connection with steam heating systems, either vacuum, gravity, or drain, and in use is to be attached to the discharge end of the radiator and to the return pipe of the system, to conduct air and water of condensation out from the radiator and at the same time prevent an undue amount of steam from passing out therewith.

The primary object of the present invention is to construct a plurality of by-passes, each of which has communication with the lower portion of the chamber of the valve casing and with the discharge passage or outlet of the valve casing, and serves to drain or blow ofl' any sediment or dirt which may collect in the bottom of the chamber of the valve casing.

Another object of the invention is to control this plurality of by-passes by valve members, which are all operated by a single stem which is seated within one of the walls of the valve casing.

The figure of the drawing is a sectional elevation of the valve of the present invention.

The valve consists of a casing 3, preferably cylindrical in formation, which casing is provided with a laterally extending neck 4, having an inlet passage 5 therein; and connected to said neck is a coupling 6, by means of which the valve can be attached to the discharge end of the radiator. The casing is further provided with a downwardly depending neck or stem 7, in which is formed a discharge passage or outlet 8, and the casing is also provided, on oneside, with a boss 9, into which is screw-threaded a stem 10 formed with a head 11 to receive a wrench or other operating means, and with a collar or flange 12 to abut against the end face of the boss 9 when the stem is fully entered.

The stem 10 comprises a section 13 which terminates in a beveled shoulder that serves as a valve member 14, and a section 15, preferably of reduced size or diameter with respect to the size or diameter of the section 13; and the section 15 terminates in a 5 tapered end which serves as a second valve member 16. The valve member 14 controls a port or passage 17 radially extending from and communicating with the outlet or discharge passage 8, and also communicating with an annular channel or chamber formed in the lower end of the chamber of the valve casing. The valve member 16 controls a port or passage 18, oppositely disposed from the port or passage 17 and radially extend- ;ing from and communicating with the outlet or discharge passage 8, and also commuznicating'with the same annular channel or Echamber in the lower end of the chamber of the valve casing. The ports or passages 17 and 18 are both formed in the neck or stem 7, which extends upwardly from the .ifloor of the valve casing; and around this neck or stem is located the annular channel or chamber 19, wit-h which the ports or passages 17 and 18 communicate. This channel g or chamber on the inlet side of the valve casiing forms a pocket 20, into which the inlet passage 5 opens.

, WVhen the valve stem is retracted, it will fbe seen that the valve members will be withdrawn from the ports or passages 17 and 118 which they govern, opening the port-s or passages 17 and 18, so that sediment can be isucked from or blown out of the channel or chamber 19 and pocket 20, into the discharge ,or return pipe of the system. This arrange @ment enables any and all sediment which may collect in the chamber of the casing to be readily sucked or blown out, and such sucking or blowing out will be thorough and effective for the entire chamber of the easing, which is liable not to be the case it but a single port or passage, on one side only, were used for the purpose of sucking or @blowing off this sediment.

Attached to the upper end of the valve casing, in the construction shown, is a cap or cover 20 into which is entered a screwthreaded plug 21, having a chamber formed therein, and into which chamber is entered a tubular stem or valve piece 22 fixed to a ,float 23 and having a longitudinal passage therethrough. The float carries, at its lower end, a tubular stem or valve piece 24, which enters a chamber 25 formed in a shouldered valve plug 26, which is screw-threaded into the outlet or discharge opening 8; and surrounding the float is a shell 27, which, as shown, terminates below the line of flotation of the float and is open at its upper end to form an inlet opening 28; and is inturned at its lower end 29 and clamped between the floor of the casing and the shouldered valve plug 25. The tubular stems or valve pieces cooperate with one another and with the float, to forma passageway for air, which passageway is for the purpose of educting air from the interior of the casing into the outlet or discharge passage 8 of the casing.

I claim:

1. In a valve of the class described, the combination of a casing provided with a chamber having an inlet passage and a discharge passage communicating therewith, a float within the casing, for governing the discharge passage, a shell surrounding saidfloat and provided with a water inlet opening, a hollow neck extending up from the floor of the valve casing and having therein the upper part of the discharge passage, a plurality of ports formed in the hollow neck and communicating with the lower end of the chamber in the valve casing and with the discharge passage of the neck, a stem entered through the casing and provided with valve members for governing the ports, and means for discharging air from the casing, substantially as described.

2. In a valve of the class described, the combination of a casing provided with a chamber having an inlet passage and a discharge passage communicating therewith, a float within the casing, for governing the discharge passage, a shell surrounding said float and provided with a water inlet opening, a hollow neck extending up from the floor of the valve casing and having therein a part of the discharge passage, oppositely disposed ports formed in said neck and radially extending from the center thereof, said ports communicating with the lower end of the chamber in the valve casing and with the interior of the neck, a stem extending through the valve casing and provided with valve members for governing the ports, and means for discharging the air from the casing, substantially as described.

3. In a valve of the class described, the combination of a casing provided with a chamber having an inlet passage and a discharge passage communicating therewith, a float within the casing, for governing the discharge passage, a shell surrounding said float and provided with a water inlet opening, a hollow neck extending up from the floor of the valve casing and having therein a part of the discharge passage, oppositely disposed ports formed in said neck and radially extending from the center thereof,

charge passage communicating therewith, a

float within the casing, for governing the discharge passage, a shell surrounding said float and provided with a water inlet opening, a hollow neck extending up from the floor ofv the valve casing and having therein a part of the discharge passage, oppositely disposed ports of different diameters formed in the neck and radially extending from the center thereof, said ports communicating with the lower end of the chamber in the valve casing and with the discharge passage of the casing, a stem extending through the valve casing and provided with valve members for governing the ports, and means for discharging the air from the casing, substantially as described.

5. In a valve of the class described, the combination of a casing having a chamber provided with an inlet and an outlet for water of condensation, a float within the casing, controlling the outlet, an annular chamber at the lower end of the float chamber oppositely arranged ports communicating with the outlet passage and the annular chamber, and a valve stem provided with seating faces, one face for each port, and controlling the ports, substantially as described.

6. In a valve of the class described, the combination of a casing having a chamber provided with an inlet and an outlet for water of condensation, a float within the casing, controlling the outlet, an annular chamber at the lower end of the float chamber, and having a pocket in line with the inlet of the float chamber, oppositely arranged ports communicating with the outlet passage and the annular chamber, and a valve stem provided with seating faces, one face for each .port, and controlling the ports, substantially as described.

FRED WV. LEUTHESSER.

\Vitnesses:

THOMAS A. BANNING, Jr., WM. P. BOND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

